Datasheet
4Maxim Integrated
MAX5318
18-Bit, High-Accuracy Voltage Output DAC with
Digital Gain, Offset Control, and SPI Interface
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= V
DDIO
= 4.5V to 5.5V, V
AVSS
= -1.25V, V
AGND
= V
DGND
= V
AGND_F
= V
AGND_S
= 0V, V
REF
= 4.096V, TC/SB =
PD = LDAC = M/Z = DGND, RST = V
DDIO
, C
REFO
= 100pF, C
L
= 100pF, R
L
= 10kω, C
BYPASS
= 1µF, T
A
= -40°C to +105°C, unless
otherwise noted. Typical values are at T
A
= +25°C.) (GAIN = 0x3FFFF and OFFSET = 0x00000.)(Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
STATIC PERFORMANCE—V
BYPASS
OUT SECTION
Output Voltage V
BYPASS
2.3 2.4 2.5 V
Load Capacitance to GND C
L
Required for stability, R
ESR
= 0.1I (typ)
1 8
FF
POWER-SUPPLY REQUIREMENTS
Positive Analog Power-Supply
Range
V
AVDD
4.5 5.5 V
Digital Interface Power-Supply
Range
V
DDIO
1.8 V
AVDD
V
Negative Analog Power-Supply
Range
V
AVSS
-1.5 -1.25 0 V
Positive Analog Power-Supply
Current
I
AVDD
No load, external reference, output at zero
scale
5.2 6.5 mA
Negative Analog Power-Supply
Current
I
AVSS
No load, external reference, output at zero
scale
-1.5 -1.0 mA
Interface Power-Supply Current I
VDDIO
Digital inputs at V
DDIO
or DGND 0.2 5.0
FA
Positive Analog Power-Supply
Power-Down Current
PD = V
DDIO
, power-down mode 20 50
FA
Negative Analog Power-Supply
Power-Down Current
PD = V
DDIO
, power-down mode -5 -3
FA
DYNAMIC PERFORMANCE
Voltage Output Slew Rate SR
From 10% to 90% full scale, positive and
negative transitions
4.9
V/Fs
Voltage Output Settling Time t
S
From falling edge of LDAC to within
0.003% FS, R
L
= 10kI, DIN = 04000h
(6.25% FS) to 3C000h (93.75% FS)
3
Fs
Busy Time t
BUSY
(Note 5) 1.9
Fs
DAC Glitch Impulse
Major code transition (1FFFFh to 20000h),
R
L
= 10kI, C
L
= 50pF
4 nVs
Digital Feed Through
CSB = V
DDIO
, f
SCLK
= 1kHz, all digital
inputs from 0V to V
DDIO
1 nVs
Output Voltage-Noise Spectral
Density
At f = 1kHz to 10kHz, without reference,
code = 20000h
26
nV/√Hz
Output Voltage Noise
At f = 0.1Hz to 10Hz, without reference,
code = 20000h
1.55
FV
P-P
Wake-Up Time From power-down mode 75
Fs
Power-Up Time From power-off 2 ms